For ships to pass under the Memorial Bridge, it must be raised by a vertical lifting mechanism.
In operation an average speed of 1 m/s is required for a total distance of 40 metres.
To reduce maintenance and increase overall reliability, the bridge builders used pre-assembled readychain system from igus.
These were used instead of the hanging cables in the original version. The cables harnessed with connectors were inserted into energy chains and pre-assembled on site in the igus factory and then delivered on site as ready-to-install systems and installed.
The igus engineers used highly flexible chainflex cables in the E4 energy chain as well as heavy-duty CFXL clamps for secure cable strain relief. Each installed cable type was intensively tested at the test laboratory spread over a floor space of 2,750 m².